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Why does one need to study about soil and what is its importance?
You would be aware that, from the dawn of agriculture, cultivators were attracted to fertile soils of river valleys. Early Greek and Roman writers have described farming systems that involved leguminous plants, use of ashes and sulphur as soil su pplements. German chemist Justus von Liebig (1840) found that crop yields were increased by adding minerals to soils. He proposed that the mineral elements in the soil added as manures and fertilizers are essential for plant growth. According to him certain factors are essential for plant growth and if any one of these factors is limiting (controlling) plant production would be reduced. Soils are studied today to ascertain which of these factors is below desired level and how its limitation to plant growt h can be removed.
What is crossing over? How is meiosis related to this phenomenon? Linked alleles, for instance, A-b and a-B, form the gametes A-b and a-B that maintain the linkage of the allel
In phylum colenterata if tissues are present in the body of an organism then why organs are not present as group of tissues makes an organuestion..
characteristics of class mamalias
Explain about the essential fat in Humans? For the body to function normally, certain amount of body fat is required. This is called essential fat. For women, average amount of
Some species of plant are strongly adapted to pollination by certain insects. Characteristics which are regarded as adaptations to pollination by bees are: ( a) white o
explain nature of plasma membrane?
If the condition or the post disease as a result of intraradicular infection----> treated conventionally via apex " non-surgical ", ---->Here we have 2 options either coronal
Secondary Production - Ecosystem The net primary production is the only energy available to consumers or heterotrophs including man. Herbivores such as cow or deer gaze upon
what is the structural formula for Galactose?
how to explain an example from each class of vertebrate
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